;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
-declare float @llvm.sqrt.f32(float %f)
+declare float @llvm.sqrt.f32(float)
+declare float @sqrtf(float)
; Check register square root.
define float @f1(float %val) {
-; CHECK: f1:
+; CHECK-LABEL: f1:
; CHECK: sqebr %f0, %f0
; CHECK: br %r14
%res = call float @llvm.sqrt.f32(float %val)
; Check the low end of the SQEB range.
define float @f2(float *%ptr) {
-; CHECK: f2:
+; CHECK-LABEL: f2:
; CHECK: sqeb %f0, 0(%r2)
; CHECK: br %r14
%val = load float *%ptr
; Check the high end of the aligned SQEB range.
define float @f3(float *%base) {
-; CHECK: f3:
+; CHECK-LABEL: f3:
; CHECK: sqeb %f0, 4092(%r2)
; CHECK: br %r14
- %ptr = getelementptr float *%base, i64 1023
+ %ptr = getelementptr float, float *%base, i64 1023
%val = load float *%ptr
%res = call float @llvm.sqrt.f32(float %val)
ret float %res
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define float @f4(float *%base) {
-; CHECK: f4:
+; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: sqeb %f0, 0(%r2)
; CHECK: br %r14
- %ptr = getelementptr float *%base, i64 1024
+ %ptr = getelementptr float, float *%base, i64 1024
%val = load float *%ptr
%res = call float @llvm.sqrt.f32(float %val)
ret float %res
; Check negative displacements, which also need separate address logic.
define float @f5(float *%base) {
-; CHECK: f5:
+; CHECK-LABEL: f5:
; CHECK: aghi %r2, -4
; CHECK: sqeb %f0, 0(%r2)
; CHECK: br %r14
- %ptr = getelementptr float *%base, i64 -1
+ %ptr = getelementptr float, float *%base, i64 -1
%val = load float *%ptr
%res = call float @llvm.sqrt.f32(float %val)
ret float %res
; Check that SQEB allows indices.
define float @f6(float *%base, i64 %index) {
-; CHECK: f6:
+; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 2
; CHECK: sqeb %f0, 400(%r1,%r2)
; CHECK: br %r14
- %ptr1 = getelementptr float *%base, i64 %index
- %ptr2 = getelementptr float *%ptr1, i64 100
+ %ptr1 = getelementptr float, float *%base, i64 %index
+ %ptr2 = getelementptr float, float *%ptr1, i64 100
%val = load float *%ptr2
%res = call float @llvm.sqrt.f32(float %val)
ret float %res
}
+
+; Test a case where we spill the source of at least one SQEBR. We want
+; to use SQEB if possible.
+define void @f7(float *%ptr) {
+; CHECK-LABEL: f7:
+; CHECK: sqeb {{%f[0-9]+}}, 16{{[04]}}(%r15)
+; CHECK: br %r14
+ %val0 = load volatile float *%ptr
+ %val1 = load volatile float *%ptr
+ %val2 = load volatile float *%ptr
+ %val3 = load volatile float *%ptr
+ %val4 = load volatile float *%ptr
+ %val5 = load volatile float *%ptr
+ %val6 = load volatile float *%ptr
+ %val7 = load volatile float *%ptr
+ %val8 = load volatile float *%ptr
+ %val9 = load volatile float *%ptr
+ %val10 = load volatile float *%ptr
+ %val11 = load volatile float *%ptr
+ %val12 = load volatile float *%ptr
+ %val13 = load volatile float *%ptr
+ %val14 = load volatile float *%ptr
+ %val15 = load volatile float *%ptr
+ %val16 = load volatile float *%ptr
+
+ %sqrt0 = call float @llvm.sqrt.f32(float %val0)
+ %sqrt1 = call float @llvm.sqrt.f32(float %val1)
+ %sqrt2 = call float @llvm.sqrt.f32(float %val2)
+ %sqrt3 = call float @llvm.sqrt.f32(float %val3)
+ %sqrt4 = call float @llvm.sqrt.f32(float %val4)
+ %sqrt5 = call float @llvm.sqrt.f32(float %val5)
+ %sqrt6 = call float @llvm.sqrt.f32(float %val6)
+ %sqrt7 = call float @llvm.sqrt.f32(float %val7)
+ %sqrt8 = call float @llvm.sqrt.f32(float %val8)
+ %sqrt9 = call float @llvm.sqrt.f32(float %val9)
+ %sqrt10 = call float @llvm.sqrt.f32(float %val10)
+ %sqrt11 = call float @llvm.sqrt.f32(float %val11)
+ %sqrt12 = call float @llvm.sqrt.f32(float %val12)
+ %sqrt13 = call float @llvm.sqrt.f32(float %val13)
+ %sqrt14 = call float @llvm.sqrt.f32(float %val14)
+ %sqrt15 = call float @llvm.sqrt.f32(float %val15)
+ %sqrt16 = call float @llvm.sqrt.f32(float %val16)
+
+ store volatile float %val0, float *%ptr
+ store volatile float %val1, float *%ptr
+ store volatile float %val2, float *%ptr
+ store volatile float %val3, float *%ptr
+ store volatile float %val4, float *%ptr
+ store volatile float %val5, float *%ptr
+ store volatile float %val6, float *%ptr
+ store volatile float %val7, float *%ptr
+ store volatile float %val8, float *%ptr
+ store volatile float %val9, float *%ptr
+ store volatile float %val10, float *%ptr
+ store volatile float %val11, float *%ptr
+ store volatile float %val12, float *%ptr
+ store volatile float %val13, float *%ptr
+ store volatile float %val14, float *%ptr
+ store volatile float %val15, float *%ptr
+ store volatile float %val16, float *%ptr
+
+ store volatile float %sqrt0, float *%ptr
+ store volatile float %sqrt1, float *%ptr
+ store volatile float %sqrt2, float *%ptr
+ store volatile float %sqrt3, float *%ptr
+ store volatile float %sqrt4, float *%ptr
+ store volatile float %sqrt5, float *%ptr
+ store volatile float %sqrt6, float *%ptr
+ store volatile float %sqrt7, float *%ptr
+ store volatile float %sqrt8, float *%ptr
+ store volatile float %sqrt9, float *%ptr
+ store volatile float %sqrt10, float *%ptr
+ store volatile float %sqrt11, float *%ptr
+ store volatile float %sqrt12, float *%ptr
+ store volatile float %sqrt13, float *%ptr
+ store volatile float %sqrt14, float *%ptr
+ store volatile float %sqrt15, float *%ptr
+ store volatile float %sqrt16, float *%ptr
+
+ ret void
+}
+
+; Check that a call to the normal sqrtf function is lowered.
+define float @f8(float %dummy, float %val) {
+; CHECK-LABEL: f8:
+; CHECK: sqebr %f0, %f2
+; CHECK: cebr %f0, %f0
+; CHECK: jo [[LABEL:\.L.*]]
+; CHECK: br %r14
+; CHECK: [[LABEL]]:
+; CHECK: ler %f0, %f2
+; CHECK: jg sqrtf@PLT
+ %res = tail call float @sqrtf(float %val)
+ ret float %res
+}